Z-Val-Ala-OH
Based on 1 Customer Validation
Z-Val-Ala-OH is a dipeptide derivative of valine and alanine. Z-Val-Ala-OH undergoes cleavage by cathepsin B and other lysosomal proteases to enable payload release following lysosomal internalization. Z-Val-Ala-OH can be used for the research of antibody-drug conjugate (ADC) development[1].
For research use only. We do not sell to patients.
- Purity : 99.78%
- CAS No.: 24787-89-1
- Formula: C16H22N2O5
- Molecular Weight:322.36
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Storage:Powder -20°C, 3 years , 4°C, 2 years ; In solvent -80°C, 6 months , -20°C, 1 month
Biological Activity
Description
In Vitro
Z-Val-Ala-OH-derived linker is rapidly cleaved by lysosomal enzymes in tritosomal mixtures, enabling efficient payload release from linker-payload constructs and ADCs[1].
MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only. Further protocols information, click here.
In Vivo
MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.
Chemical Information
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CAS No. 24787-89-1
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Appearance Solid
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Molecular Weight 322.36
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Formula C16H22N2O5
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Color White to off-white
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Synonyms
Carbobenzoxy-L-valyl-L-alanine
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Shipping
Room temperature in continental US; may vary elsewhere.
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Storage
Powder -20°C 3 years 4°C 2 years In solvent -80°C 6 months -20°C 1 month
Solvent & Solubility
In Vitro:
DMSO : 100 mg/mL (310.21 mM; Need ultrasonic; Hygroscopic DMSO has a significant impact on the solubility of product, please use newly opened DMSO)
Please refer to the solubility information to select the appropriate solvent. Once prepared, please aliquot and store the solution to prevent product inactivation from repeated freeze-thaw cycles.
Storage method and period of stock solution: -80°C, 6 months; -20°C, 1 month. When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.
Please refer to the solubility information to select the appropriate solvent. Once prepared, please aliquot and store the solution to prevent product inactivation from repeated freeze-thaw cycles.
Storage method and period of stock solution: -80°C, 6 months; -20°C, 1 month. When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.
Concentration (start) × Volume (start) = Concentration (final) × Volume (final)
Protocols
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Lysosome and acidic-vesicle live-cell staining
Lysosome and acidic-vesicle live-cell staining detects acidic intracellular compartments by using membrane-permeant acidotropic probes that accumulate in low-pH vesicles, including lysosomes, late endosomes, autolysosomes, and acidic phagosomes. LysoTracker staining is commonly used as an intensity-based readout of acidic lysosomal compartment abundance or enlargement, while acridine orange produces green fluorescence in less concentrated compartments and red fluorescence after concentration-dependent accumulation in acidic vesicular organelles. Loss or reduction of acridine-orange red signal can be used as a readout of lysosomal membrane permeabilization or reduced acidic-vesicle integrity. This protocol is designed for live cultured cells and can be adapted for fluorescence microscopy, high-content imaging, plate-reader readout, or flow cytometry when the selected literature supports the readout. Because these dyes report acidotropic accumulation rather than lysosome identity alone,
Purity & Documentation
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Data Sheet (271 KB)
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SDS (396 KB)
- English - EN (396 KB)
- Français - FR (396 KB)
- Deutsch - DE (396 KB)
- Norwegian - NO (396 KB)
- Español - ES (396 KB)
- Swedish - SV (396 KB)
- Italian - IT (396 KB)
- Korean - KR (396 KB)
- Portuguese - PT (396 KB)
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Handling Instructions (2659 KB)
References
[1]. Lee HM, et al. Identification of a Novel Linker Enabling the Bioconjugation of a Cyclic Dinucleotide for the STING Antibody-Drug Conjugate TAK-500. Bioconjug Chem. 2025;36(11):2423-2435. [Content Brief]
[2]. Dolle RE, et al. Aspartyl alpha-((diphenylphosphinyl)oxy)methyl ketones as novel inhibitors of interleukin-1 beta converting enzyme. Utility of the diphenylphosphinic acid leaving group for the inhibition of cysteine proteases. J Med Chem. 1995 Jan 20;38(2):220-2. [Content Brief]
Complete Stock Solution Preparation Table
Please refer to the solubility information to select the appropriate solvent. Once prepared, please aliquot and store the solution to prevent product inactivation from repeated freeze-thaw cycles.
Storage method and period of stock solution: -80°C, 6 months; -20°C, 1 month. When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.
| Optional Solvent | Concentration Solvent Mass | 1 mg | 5 mg | 10 mg | 25 mg |
|---|---|---|---|---|---|
| DMSO | 1 mM | 3.1021 mL | 15.5106 mL | 31.0212 mL | 77.5530 mL |
| 5 mM | 0.6204 mL | 3.1021 mL | 6.2042 mL | 15.5106 mL | |
| 10 mM | 0.3102 mL | 1.5511 mL | 3.1021 mL | 7.7553 mL | |
| 15 mM | 0.2068 mL | 1.0340 mL | 2.0681 mL | 5.1702 mL | |
| 20 mM | 0.1551 mL | 0.7755 mL | 1.5511 mL | 3.8777 mL | |
| 25 mM | 0.1241 mL | 0.6204 mL | 1.2408 mL | 3.1021 mL | |
| 30 mM | 0.1034 mL | 0.5170 mL | 1.0340 mL | 2.5851 mL | |
| 40 mM | 0.0776 mL | 0.3878 mL | 0.7755 mL | 1.9388 mL | |
| 50 mM | 0.0620 mL | 0.3102 mL | 0.6204 mL | 1.5511 mL | |
| 60 mM | 0.0517 mL | 0.2585 mL | 0.5170 mL | 1.2926 mL | |
| 80 mM | 0.0388 mL | 0.1939 mL | 0.3878 mL | 0.9694 mL | |
| 100 mM | 0.0310 mL | 0.1551 mL | 0.3102 mL | 0.7755 mL |